Results 31 to 40 of about 21,817 (300)

Synthesis of 2,4-Disubstituted Imidazoles via Nucleophilic Catalysis [PDF]

, 2020
A convergent, microwave-assisted protocol for the synthesis of disubstituted NH-imidazoles via nucleophilic catalysis is described. The substituted imidazoles are accessed via the intramolecular addition of a variety of amidoxime substrates to activated ...
Shabalin, Dmitrii A., Dunsford, Jay J., Ngwerume, Simbarashe, Gill, Duncan, Camp, Jason E., Saunders, Alexandra R.   +5 more
core   +1 more source

1-Propyl-4(5)-Methylimidazole Isomers for Temperature Swing Solvent Extraction

Molecules, 2022
Temperature swing solvent extraction (TSSE) utilizes an amine solvent with temperature-dependent water solubility to dissolve water at a lower temperature to concentrate or crystallize the brine and the phases are separated.
Shuai Qian, Lauren M. Ward, Luke S. Rakers, Steven T. Weinman, Jason E. Bara   +4 more
doaj   +1 more source

Fluoroalkylation of Imidazoles by Hypervalent Iodonium Salts

, 2016
N-1H,1H-Perfluoroalkylation and regioselective C-perfluoroalkylation of imidazoles were obtained using the corresponding hypervalent iodonium ...
Darryl D. DesMarteau (2038840), Don VanDerveer (2043787), Changqing Lu (2208802)   +2 more
core   +4 more sources

Regiodivergent synthesis of functionalized pyrimidines and imidazoles through phenacyl azides in deep eutectic solvents

Beilstein Journal of Organic Chemistry, 2020
We report that phenacyl azides are key compounds for a regiodivergent synthesis of valuable, functionalized imidazole (32–98% yield) and pyrimidine derivatives (45–88% yield), with a broad substrate scope, when using deep eutectic solvents [choline ...
Paola Vitale, Luciana Cicco, Ilaria Cellamare, Filippo M. Perna, Antonio Salomone, Vito Capriati   +5 more
doaj   +1 more source

Fruit juices act as biocatalysts in the efficient synthesis of potentially bioactive imidazoles

Green Chemistry Letters and Reviews, 2022
An efficient and eco-friendly itinerary has been carried out for the synthesis of imidazole derivatives (3a–3h) from the reactions between substituted aldehydes (1a–1h), benzil (2a), and ammonium acetate (2b) in Citrus limon L.
Susheel Gulati, Rajvir Singh, Suman Sangwan   +2 more
doaj   +1 more source

Synthesis, Characterization, and Catalytic Properties of Magnetic Fe3O4@FU: A Heterogeneous Nanostructured Mesoporous Bio-Based Catalyst for the Synthesis of Imidazole Derivatives

Frontiers in Chemistry, 2020
In this protocol, Fucoidan (FU), a fucose-rich sulfated polysaccharide extracted from brown algae Fucus vesiculosus was used for in situ preparation of magnetic Fe3O4@FU. Nanoco magnetic properties of Fe3O4@FU were investigated by energy dispersive X-ray
Maryam Banazadeh, Sara Amirnejat, Shahrzad Javanshir   +2 more
doaj   +1 more source

Polyfunctional Imidazoles: VIII.* 1-Aryl-4-chloro- 5-[R-sulfanyl(R-sulfonyl)methyl]-1H-imidazoles [PDF]

, 2014
Alkylation of (1-aryl-4-chloro-1H-imidazol-5-yl)methanethiols with alkyl halides, propargyl bromide, or chloroacetic acid gave 1-aryl-5-(R-sulfanylmethyl)-4-chloro-1H-imidazoles.
Vovk, M.V., Grozav, A.N., Chornous, V.A., Palamar, A.A.   +3 more
core   +1 more source

Chemical Structure Data File For O.A. Cojocaru's Thesis, "Synthesis and chemistry of 4,5-functionalized imidazoles."

, 2020
This Structure Data File (SDfile) is associated with the thesis: Cojocaru, O.A. "Synthesis and chemistry of 4,5-functionalized imidazoles." and https://ir.ua.edu/handle/123456789/1088 It is distributed by the University of Alabama Libraries.
Scalfani, Vincent F.
core   +1 more source

Lower micromolar activity of the antifungal imidazoles on the bacterial-type bifunctional aldehyde/alcohol dehydrogenase (AdhE) in Cryptosporidium parvum and in vitro efficacy against the zoonotic parasite

International Journal for Parasitology: Drugs and Drug Resistance
Cryptosporidium parvum is a waterborne and foodborne zoonotic protozoan parasite, a causative agent of moderate to severe diarrheal diseases in humans and animals. However, fully effective treatments are unavailable for medical and veterinary uses. There
Haichuan Chen, Dongqiang Wang, Chenchen Wang, Peng Jiang, Mingxiao Liu, Jigang Yin, Yonglan Yu   +6 more
doaj   +1 more source

The Reaction of Aminonitriles with Aminothiols: A Way to Thiol-Containing Peptides and Nitrogen Heterocycles in the Primitive Earth Ocean

Life, 2018
The Strecker reaction of aldehydes with ammonia and hydrogen cyanide first leads to α-aminonitriles, which are then hydrolyzed to α-amino acids.
Ibrahim Shalayel, Seydou Coulibaly, Kieu Dung Ly, Anne Milet, Yannick Vallée   +4 more
doaj   +1 more source